pboto-utho



Patented Oct. 8, 1867.

Inventor.

W wf/ WEST & PAUL Cultvator-Teeth.

v Wi'me-ss'emv gotta tuts sttwt ffitr.

R. WEST AND F. PAUL, OF CONCORD, NEW HAMPSHIRE.

Letters Patent No. 89,781, amd October 8, 1887.

IMPROVEMBNT IN GULTIVATOR AND HRROW-TOOT.

flte ttelmh mam tu in the: 312mm; atmt mit making ;gm tlgz same.

'110 LL WHOM IT MAY CONGERN:

Be it known thutvwe, R. WEST and H. F. PAUL, of Concord, in the county of Merrimack, and State of New Hampshire, have invented a new and improved Gultivator, or Harrow-Tooth and we do hereby declare that the following is a `full, clear, and exaet description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings forming part of this speeification.

' Figura represents a side elevation of our invention.

Figure 2 is en inverted plan view of the sume.

Figure 3 is a. rear elevation, part'ly in section, of the same.'

Similar letters of reference indicate corresponding parts. I

This invention relat'es to a new manner of Shaping the flaring wings of cultivator or han'ow-tceth, and consists ,in arranging the upper ends of the wings open at the rear of the main part of the tooth, so that the sur- .face soil will fall to the bottom between the teeth, and will thereby also cover' the track of the tooth, leaving no furrow. The invention also consists in making the said wings removable, so that they cun be replaced whenever desired, and when worn out.

A represents the body of a harrow-tooth. Its front edge is inclined, as shown in' fig. l, so as to cut easily through the soil. Towards the reiar the lower part of the tooth is .gradually spi'ead out, as shown in fig. 2, thereby forming two wings, B B. The whole rear part of the Itooth is not solid, but the wings have only the thickness necessary to make them strong enough. A triangular space is thus formed between the wings, which is left open on top, by cutting down the upper edge of the tooth at its rear end, as is clcarly shown in figs. 1 und 3. By this arrangement the surface soil ruised by the tooth, on its fiaring wings, will 4fall over the upper edgcs of the wings Vinto the .space left between the same,'and will thereby be brought to the bottom, whereby the soil is not only thoronghly turned over, but whereby also the furrow made by the tooth is covered up. The wings B can be'secured by bol-ts a a, -or otherwise, to the main part ofthe tooth A, so that they can be removed from the same whenever desired, und can be renewed when worn.

We do not claim' constructing a harrow or cultivator-tooth with tweI shares or wings, nor do we claim bringing the top of the wings together at any certain part of the main tooth, but we do claim, and dcsire to secure by Letters Patent- 1. Extcnding the fluring parts 'or the wings of a. -cultivator or harrow-tooth back, beyond the rear edge of the body of the tooth, and having the space between the said wings open on top, to allow the surface soil to fall over the edges of the wings into the furrow niade by the tooth, s'ubstantially as herein shown and described.

2. Having the wings B B of' a. cultivator or hurrow-.tooth removublc from the body A of the tooth, substantiully as and for the purposehercin shown and described.

R. WEST, H. F. PAUL.

Witnesses:

C. G. WEBSTER, DAVID L. NEAL. 

